Evaluating the Effect of SOLIUS UV Light Source in Improving Serum Levels of 25-hydroxyvitamin D in Vitamin D Deficient/ Insufficient Adults of Various Skin Types
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 69
- 试验地点
- 2
- 主要终点
- Change in Serum 25-Hydroxyvitamin D [25(OH)D]
研究概览
简要总结
The aim of this study is to evaluate the safety and effectiveness of the SOLIUS System in improving serum levels of 25-hydroxyvitamin D in vitamin D deficient/ insufficient adults of various skin types.
The investigators will conduct a double-blinded randomized clinical trial in 100 adults to compare the changes in serum 25-hydroxyvitamin D levels between subjects who received and do not receive weekly exposures to Ultraviolet B Radiation (UVB) generated by the SOLIUS System for 16 weeks.
详细描述
Study enrollment
Approximately 100 healthy adults will be enrolled ages 22 or older; both sexes, for vitamin D deficiency screening in order to enroll 80 adults with vitamin D deficiency/insufficiency (serum 25-hydroxyvitamin D <30 ng/mL). Participants will be randomized 1:1 into two groups: 40 adults for treatment arm who will receive weekly exposures of ultraviolet radiation generated by the SOLIUS System, and 40 adults for sham comparator arm.
Study procedure
The treatment group that will be exposed to the SOLIUS System will first undergo an evaluation of each individual's sensitivity to the SOLIUS System UVB using the device titration system for the first 5 weeks. Once the UVB dose is determined during the 5 weeks, the subjects will be enrolled in a 16-week study where they will be exposed to their individualized dose. For the sham comparator group, they will undergo the procedures as the treated group with the exception that the SOLIUS System will only be turned on to emit visible radiation. At these visits, each subject assigned into both groups will be asked questions about consumption of vitamin D, sun exposure, and whether he/she has had any adverse changes in his/her health. Serum 25-hydroxyvitamin D levels will be measured at baseline and monthly, and the levels will be analyzed to compare between those who receive and who do not receive the UVB radiation intervention for baseline and during the 16-week treatment period. After the 16-week intervention, participants will be asked to return to the study site weekly for measurement of serum 25-hydroxyvitamin D for 4 weeks. Serum 25(OH)D levels will be determined using the Liquid Chromatography with tandem mass spectrometry (LC/MS/MS) method. Safety will be monitored by interviewing the participants after each UVB exposure for any adverse events, including erythema or any other skin reactions.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Care Provider, Investigator)
入排标准
- 年龄范围
- 22 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age at least 22 years old
- •Male or Female
- •Skin Type I-VI
- •Women of child bearing potential must be on birth control and not pregnant based on a negative pregnancy test at baseline.
- •Ability and Willingness to give informed consent and comply to protocol requirements
- •Serum total 25(OH)D < 30 ng/mL at the screening
排除标准
- •Ongoing treatment with supplemental or pharmacological doses of vitamin D, vitamin D metabolites or analogues
- •History of underlying photosensitivity
- •Use of medications that cause a photosensitivity reaction (including but not limited to): tetracycline, tretinoin, amiodarone, doxycycline, naproxen, diphenhydramine, methotrexate, and hydrochlorothiazide
- •History of skin cancer
- •Plan to received significant sun exposure below the 33rd parallel during study
- •Used tanning or phototherapy devices within the last 30 days
- •Vitamin D supplement use of more than 600 IUs daily
- •Systemic steroids use
- •H1 antihistamine use in the last 7 days
- •Diagnosed with light allergies (including but not limited to): actinic prurigo, polymorphous light eruption, or solar urticaria
- •Diagnosed with light sensitivities (including but not limited to): protoporphyria, photodermatitis, xeroderma pigmentosum, lupus erythematosus, chronic actinic dermatitis, or UV-sensitive syndrome
结局指标
主要结局
Change in Serum 25-Hydroxyvitamin D [25(OH)D]
时间窗: Week 1, Week 21
This outcome measures the change in serum 25-hydroxyvitamin D \[25(OH)D\] concentrations in participants from Week 1 to the end of the intervention period Week 21.
Distribution of Participants by Vitamin D Deficiency Categories at Week 1
时间窗: Week 1
The three vitamin D categories are defined as: Deficient - \<20 ng/mL 25(OH)D, Insufficient - 21-29 ng/mL 25(OH)D, Sufficient - 30-100 ng/mL 25(OH)D.
Distribution of Participants by Vitamin D Deficiency Categories at Week 21
时间窗: Week 21
The three vitamin D categories are defined as: Deficient - \<20 ng/mL 25(OH)D, Insufficient - 21-29 ng/mL 25(OH)D, Sufficient - 30-100 ng/mL 25(OH)D.
次要结局
未报告次要终点